i tell you what I used to notice with the tunnel (left hand one)
it used to feel like you was driving on tram tracks as you was passing the old bus that used to be there (maybe its still there… im pretty sure its not) right where the slip road ends… if that makes sense.
It didn’t mess with the vehicle in anyway but it always felt odd when driving over that bit of road lol. I think it is gone now though… feels normal.